An eyewitness described how the knifeman yelled: 'Don't mess with me, I'll kill you' while storming the train which was full of commuters and staff.

He added that the knifeman's blade was at least '12 inches long'.

British Transport Police said: “Officers are appealing for information after a man was stabbed at Hackney Central Overground Station earlier this evening (Tuesday 2 October 2018).

“Just after 6pm this evening British Transport Police officers, along with colleagues from the Metropolitan Police Service, were called to a report of a man having being stabbed at Hackney Central Overground Station.